Tone-arm for talking-machines.



0. E. WOODS.

TONE ARM FOR TALKING MACHINES. APPLICATION FILED we. 30, 1913.

Patented Aug. 25, 191i snapped into an annulus 31 provided with a hug 1-52. This amiulus has hearing in a re ress 33 in the hollow support 5, being introduced therein through a slot M in said support and rotating on said hearing when the tone-aim moves luirizontally. 'lhe'ete tent of movement of said annulus is limited by said slot. The lug 32 may be connected to any desired mechanism which it is desired to operate by the movement of the tone-arm as, for example, the start-and-stop mechanism.

It will be understood that the lower face of flange 35, here shown as integrallyformcd on the horizontal support 5, rests upon the motor board or the machine casing.

The arious parts described are assembled by first introducing the annulus 31 through the slot onto its hearing 33, and then snapping; the lower end of ring :28 through the opening in said annulus until the. ridge bears upon the former. Sleeve 23 which is fixedly secured. to section ll is then introduced into the hollow support until lugs 27 on; re the recesses- 2 3 and the lower face of scctum 6 rests upon the upper face of sun port 5. Screw 2-3 is then put in place with its point engaging in the slot 2st of sleeve 23. It now only remains to place section 7 in position, and this is readily efiiected byturning said section into a vertical position and introducing it into the open end of section 6 until spring l8 presses againstthe ridge ii). The spring" is thus placed under tension and the section turned down to the position indieattal in Fig. l, with its lugs or ribs 12 and 1 -3 engaging the rear faces of lugs orrihs it and lfhe screw 20 is then placed in position to limit the vertical movement of section 7, and the parts are new in position for operation.

The tone-arm as thus produced is smaller in size than those heretofore employed, is very simple in cons.-'tr1u:tion and eli'ective in operation, is highly attractive in appearance, and is acoustically and meclmnically correct, and the parts are readily constructed, assembled and disarscmhled.

, \Vhile, tor the purpose of clearncss, there is herein illustrated and described in detail one expression of the inventive idea, it is to be understood that the invention is not limited to the construction shown, but that the inventive idea is susceptible of many mechanical expressions within the limits of the claims appended hereto.

What is claimed is 1. In combination, av tone-arnrhaving' a vertical section and a horizontal section, a hollow support on which the vertical section rests, a sleeve secured to said vertical section and projecting into said support, a split r connected to said sleeve to participate in its rotary movements, and an annulus member secured to said split ring.

In combination, a tone-arm having a vertical section and a horizontal section, a hollow support on which the vertical section rests, a part n'nwingij with said vertical secti. o. and projecting into said support, means connected to the lower end of said projecting part to participate in its rotary movements, and a. member secured to said means.

3. In combination, a tone-arm having a vertical section and a horizontal section, a hollow support on which the vertical section rests, asleeve secured to said vertical section and projecting, into said support, means Ci'iili'lQCtLLl to the lower end of said sleeve to participate in its rotary movements, and a lllCll'llJQl secured to said means.

In testimony Whereo'l' I have signed this. specification in the presence of two subscribing Witnesses.

CLINTON E. \VOODS.

Witnesses: i .lonx R. Pn'rmn.

JOHN S. GRIFFITH. 

